mitt romney arriving at the debate hall. we're watching -- we're getting closer and closser to the first debate between president obama and governor romney. people across the country are be watching, but the candidates are most concerned about swaying those battleground state voters who haven't yet made up their minds. cnn has put together a focus group of undecided voters from colorado, the state that's hosting the debate tonight. we're going to be watching their reaction to the candidates in real time. erin burnett is with the focus group over at the university of denver. joining us now. tell us about this focus group. >> wolf, these are people -- look, anyone who is watching, busy, taking time out of your lives to watch this. imagine taking the time to sit in person and dial test this, every word that these candidates say. these are people who are passionate about voting but undecided. a small group of americans very important to sdigd the election. wolf says they are undecided. the other thing about this group of people